NETSCREEN-CHASSIS-MIB

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Organization: Juniper Networks, Inc.

Last Updated: 2007-05-08

Category: Hardware Inventory

Description: Monitors hardware chassis components, module presence, fan, power, and temperature on Juniper NetScreen platforms.

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What Is NETSCREEN-CHASSIS-MIB?

NETSCREEN-CHASSIS-MIB is a hardware-monitoring MIB for Juniper NetScreen (ScreenOS) firewall/security appliances, defining objects to monitor the physical chassis's battery, fan, power supply, and temperature status. It is explicitly a hardware-health MIB rather than a configuration or traffic MIB, exposing sensor-style status and threshold data for each monitored component. This MIB is squarely about monitoring hardware status of the device: administrators poll it to detect a failed or degraded fan, an overheating chassis, a power supply fault, or a failing backup battery, all leading indicators of impending appliance failure. As a vendor-specific ScreenOS MIB it has no dependency on IETF standards, though it fits alongside the broader family of NetScreen private MIBs (interface, VPN, zone) covering the same device. It is typically deployed wherever Juniper NetScreen firewall appliances are installed at network edges, in data centers, and branch offices, where NETSCREEN-CHASSIS-MIB SNMP monitoring triggers proactive maintenance alerts before a hardware fault causes an outage.

IPNetwork Monitor allows you to monitor SNMP objects defined in NETSCREEN-CHASSIS-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Juniper NetScreen (ScreenOS) firewall/security appliance

Monitoring Examples

An administrator would poll the chassis temperature object to catch a reading climbing beyond the normal operating threshold, which combined with a fan-status object reporting a fault would explain the temperature rise and prompt physical inspection or fan replacement. A power object reporting a failed or absent power supply in a redundant-PSU chassis would trigger an alert even while the unit remains operational on its second supply. Battery status objects would be polled to catch a degraded backup battery before it fails during a power outage, preventing loss of the firewall's real-time clock or configuration state.

What Can Be Monitored

chassis temperature
fan operational status
power supply status
battery status

Imported Objects

From NETSCREEN-SMI

netscreen

MODULE-IDENTITY

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

How to Use in IPNetwork Monitor

Example using sysBatteryStatus OID:

Select a Juniper NetScreen firewall as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type sysBatteryStatus into the Find box to locate it in the OID tree, then select it and click OK. It reports the information describing the installed Battery and its status: 1. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is an Integer32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
netscreenChassis	1.3.6.1.4.1.3224.21			This module defines the objects that are used to monitor device status such as Battery, Fan, Power and Temperature
nsPowerTable	1.3.6.1.4.1.3224.21.1		not-accessible	Information describing installed power supply modules and their status
nsPowerEntry	1.3.6.1.4.1.3224.21.1.1		not-accessible	Information describing one power supply module and its status
I32 nsPowerId	1.3.6.1.4.1.3224.21.1.1.1	Integer32	read-only	A 32-bit integer uniquely identifying the power supply id. For 5400, range is 1~3, For 5200, range is 1~2
I32 nsPowerStatus	1.3.6.1.4.1.3224.21.1.1.2	Integer32	read-only	A 32-bit integer uniquely identifying the power supply module's status: 0. Fail 1. Good 2. Not installed
STR nsPowerDesc	1.3.6.1.4.1.3224.21.1.1.3	DisplayString	read-only	A description for the power supply module
nsFanTable	1.3.6.1.4.1.3224.21.2		not-accessible	Information describing the installed Fan modules and their status
nsFanEntry	1.3.6.1.4.1.3224.21.2.1		not-accessible	Information describing one installed Fan module and its status
I32 nsFanId	1.3.6.1.4.1.3224.21.2.1.1	Integer32	read-only	A 32-bit integer uniquely identifying the Fan id. At the time of this writing.
I32 nsFanStatus	1.3.6.1.4.1.3224.21.2.1.2	Integer32	read-only	A 32-bit integer uniquely identifying the Fan module's status: 0. Fail 1. Good
STR nsFanDesc	1.3.6.1.4.1.3224.21.2.1.3	DisplayString	read-only	A description for the Fan module
I32 sysBatteryStatusEx	1.3.6.1.4.1.3224.21.3	Integer32	read-only	Information describing the installed Battery and its status: 1. Good 2. Error
nsTemperatureTable	1.3.6.1.4.1.3224.21.4		not-accessible	Information describing the temperature measured by each module
nsTemperatureEntry	1.3.6.1.4.1.3224.21.4.1		not-accessible	The temperature measured by a module
I32 nsTemperatureId	1.3.6.1.4.1.3224.21.4.1.1	Integer32	read-only	A 32-bit integer uniquely identifying temperature measured on a board or on a component e.g. CPU
I32 nsTemperatureSlotId	1.3.6.1.4.1.3224.21.4.1.2	Integer32	read-only	A 32-bit integer uniquely identifying the slot where the temperature is measured.
I32 nsTemperatureCur	1.3.6.1.4.1.3224.21.4.1.3	Integer32	read-only	The current temperature measured by the module, unit is Celsius
STR nsTemperatureDesc	1.3.6.1.4.1.3224.21.4.1.4	DisplayString	read-only	A description for the module
nsSlotTable	1.3.6.1.4.1.3224.21.5		not-accessible	Information describing the installed management and traffic processing modules and their status, built-in and internal module are also listed here.
nsSlotEntry	1.3.6.1.4.1.3224.21.5.1		not-accessible	Information describing one installed module and its status
I32 nsSlotId	1.3.6.1.4.1.3224.21.5.1.1	Integer32	read-only	A 32-bit integer uniquely identifying the slot id. The range varies on different platforms
STR nsSlotType	1.3.6.1.4.1.3224.21.5.1.2	DisplayString	read-only	A description of the installed module
I32 nsSlotStatus	1.3.6.1.4.1.3224.21.5.1.3	Integer32	read-only	Slot status
STR nsSlotSN	1.3.6.1.4.1.3224.21.5.1.4	DisplayString	read-only	Serial Number of the module

RFC description

NetScreen (Juniper) vendor MIB for security appliance chassis hardware monitoring and fan/temperature management.

Start monitoring Juniper NetScreen firewalls with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download NETSCREEN-CHASSIS-MIB